Cash register attachment for screening keys



FIG. 1 is a front and top-left perspective view of a cash register attachment for screening keys showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof. 

The ornamental design for a cash register attachment for screening keys, substantially as shown. 